Wire reel



Sept. 23 1924. 1,509,656

L. S. LACHMAN ET AL.

WIRE REEL Filed Feb. 28. 1922 l VENTjEM Patented Sept. 23, 1924. I

UNITED; STATES PATENT OFFICE.

LAURENCE S. LACHMAN AND EDWARD FULDA, OF NEW YORK, N. Y. V

WIRE REEL.

T 0 all whom it may concern:

Be it known that we, LAURENCE S. LACH- MAN and EDWARD FULDA, citizens of the United States, and residents of New York city, in the county of'New York and State of New York, have invented certain new and useful Improvements in Wire Reels, of which the following is a specification.

Our invention relates tothe construction of reels wherein the rim element and the spoke elements consist of wires electrically Welded together and having the spoke elements suitably welded to the hub or center.

Our invention is designed more particularly for use in the construction of reels for moving picture films.

The principal object of our invention is to produce a reel of the general construction above mentioned without protuberances or roughness liable to injure the film or the hands of the operator.

A further object of the invention is to produce a reel of great stiffness and strength and of simple construction and easy to manufacture.

To these ends our invention consists,

among other things, of a reel wherein the.

wire spokes are butt-welded to the inside of a wire rim and flush with the plane of the rim and .at the center are cross-welded to the outside edges of the drum and to the inside face of a hub disk or flange of smaller diameter than said drum.

The invention further consists in details of construction having for their object simplicity of construction of the reel and compactness and strength at the hub or center part as more particularly hereinafter described and claimed.

In the accompanying drawings Fig. 1 is a side elevation of a reel embodying ourinvention.

Fig. 2 is a vertical cross-section of the same on the line 2-2 of Fig. 1.

Fig. 3 shows the hub of the reel enlarged.

Fig. 4 is a section on line 41- 4 of Fig. 3.

Fig. 5 is asection on line 5-5 of Fig. 2.

1 indicates the drum or cylindrical metal element at-the center which may be used as a drum for winding a film or other object or may be employed simply as a stiffening element of the hub center of the structure.

-2 indicates a circular wire element forming a rim. A pair of such rims or rings is emp-loyed to complete the reel. 3 indicates the wire spokes or radial elements connecting the rings and the center. The elements 3 are joined to the inside of the rings 2 by electric butt-Welds which are preferably formed by overlapping the free end of the wire spoke upon the edge of the ring and forcing it down into position by the operation of a pair of welding dies embracing said elements to bring the parts into the same general plane and leave them united by a joint which is in effect the same as the butt-welded joint produced by forcing the parts together in the direction of the longitudinal axis of the wire. By the use of the proper form in the die faces a smooth finish is secured with absence of \burrs or projections although, obviously, the joint at this point might be formed by the usual butt-welding operation and then subsequently finished off. The essential thing is that the spokes and the wire rims are, secured together by an electric weld and occupy the same general planetransverse to the axis of rotation of the reel.

4.- indicates a hub disk or flange against the inner face of which the spokes are sidewelded by the electric resistance method, so that the upset or extruded metal of the weld will be within the disk or hub strdcture and will not be exposed for injury to the hands of the operator. To aid in effecting this side-weld the disk may be rovided with a ridge as indicated'at 5. flange may have an inwardly projecting boss against the edge of which the spoke seats to give greater resistance to the forces directed radially inward to the spokes and to add to stiffness in a lateral direction.

The side disks 4 are, as usual, provided with an opening in the center for the hub spindle or axis and are connected by the spindle or axial sleeve Gin any suitable way. The drum or cylindrical member -1 is of larger diameter or circumference than the lso the disk or drum at such bent edge and the parts are forced together, the welding is produced in the usual way but with the efi'ect of throwing the burr ofthe weld inward below the exterior surface of the drum.

In the actual work of producing the structure the portion thereof comprising the parts 2, 3, at is first produced, the spokes 'being singly or simultaneously welded to 10 of the reel but will secure a certain resilience to shock when the reel is dropped and strikes the floor by its edge.

The drum is preferably provided with a lon itudinal slit indicated at 9 which may be eft in bending up a strip of metal to form the drum and which provides an openinggin which the end of the film may be slipped tohold it'in the winding operation.

As will'be understood, the indentation of the drum at its edgemay be producedbefore the bending out of the metal strip to drum form and said indentation may extend to produce practically an inturned edge of the drum extending clear around the same, so that the point of welding against the edge of the vdrum for securing the spokes does not have to be selected thereon.

What we claim as our invention is 2-9 1. A reel having a wire rim and hub disk or plate and wire spokes butt-welded to the inner edge of therim and sidewelded at the center to the inside of a hub disk or plate.

2. A metal reel comprising a drum, a hub disk or plate, wire spoke elements and wire rim, said spoke elements welded to said rim and welded at the-center to the inside ofthe hub disk and cross-welded to the outer edge of said drum.

3. A reel comprising a drum, a hub disk or plate of smaller diameter and wire spokes side-welded to the inside of said disk and against an inwardly depressed portion of the edge of the drum.

4. In a metal reel, the combination of a central hub disk or flange provided with an inwardly extending boss, a drum of larger diameter than said disk and spokes crossing andwelded to the edge of the drum and to the inside face of the disk, said spokes butting against the edge of said boss.

.5. In a skeleton spoked wire construction having a hub or center from which the spokes radiate, the combination with a wire rim, wire spokes butt-welded to the inside of said rim and a center plate or disk perforated for an axis or spindle and having said spokes side-welded thereto.

6. A wire-spoked structure comprising a drum, a center disk or plate of smaller diameterthan said drum and radiating wire spokes side-welded'to the inside of said disk and cross-welded to the edge of said drum.

7. A metal drum having radiating metal elements welded against an inturned edge of said drum whereby the extruded metal of the weld is located entirely below the exterior surface of said drum.

8. A metal drum having radiating wire elements side welded against an inturned edge of said "drum whereb the extruded metal of the weld is locate entirely below the exterior surface of said drum.

9. A wire spoked structure having a drum and radiating wire spokes side welded against an inwardly depressededge of said drum.

Signed at New York, in the county of New York and State of New York, this 27th day of Februa A. D. 1922.

LA REN'CE S. LACHMAN. EDWARD F ULDA. Witnesses:

F. B. TOWNSEND, GEORGE E. BROWN. 

